SAT II - World History Thread

<p>Hey everyone!
I just had a question. I recently took the AP World History exam, and I’m planning on taking the SAT Subject Test II for World History.
What’s the difference between the two? (Other than the fact that one is AP, and other is SAT II, and that one has an essay and the other doesn’t…). Such as format, etc.
Which one is harder?
I bought the Kaplan AP World History book 2013-2014 version; should I purchase another book that is tailored towards SAT WH?</p>

<p>Best wishes!</p>